<i>Tribulus terrestris</i> Fruit Extract: Bioactive Compounds, ADMET Analysis, and Molecular Docking with Penicillin-Binding Protein 2a Transpeptidase of Methicillin-Resistant <i>Staphylococcus epidermidis</i>

<i>Tribulus terrestris</i> is a rich source of bioactive molecules and thrives in Mediterranean and desert climate regions worldwide. In this study, <i>Tribulus terrestris</i> methanolic HPLC fractions were evaluated for bioactive compounds and PBP2a transpeptidase inhibitors...

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Main Author: Khalid J. Alzahrani
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Current Issues in Molecular Biology
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Online Access:https://www.mdpi.com/1467-3045/47/1/52
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author Khalid J. Alzahrani
author_facet Khalid J. Alzahrani
author_sort Khalid J. Alzahrani
collection DOAJ
description <i>Tribulus terrestris</i> is a rich source of bioactive molecules and thrives in Mediterranean and desert climate regions worldwide. In this study, <i>Tribulus terrestris</i> methanolic HPLC fractions were evaluated for bioactive compounds and PBP2a transpeptidase inhibitors against methicillin-resistant <i>Staphylococcus epidermidis</i> (MRSE). Among the collected HPLC fractions, F02 of the methanol extract demonstrated potential activity against MRSE01 (15 ± 0.13 mm), MRSE02 (13 ± 0.21 mm), and MRSE03 (16 ± 0.14 mm) isolates. GC-MS analysis of the F02 fraction identified seventeen compounds. Among seventeen compounds, eight have favorable pharmacokinetics and medicinal chemistry; however, on the basis of in silico high water solubility, high GI absorption, blood–brain barrier non-permeability, lack of toxicity, and potential drug-likeness, 1-ethylsulfanylmethyl-2,8,9-trioxa-5-aza-1-sila-bicyclo[3.3.3]undecane and phthalimide, N-(1-hydroxy-2-propyl), were processed for molecular docking. 1-ethylsulfanylmethyl-2,8,9-trioxa-5-aza-1-sila-bicyclo[3.3.3]undecane formed three hydrogen bonds with Ser-452, Thr-584, and Asn-454 residues of the PBP2a transpeptidase. Similarly, phthalimide, N-(1-hydroxy-2-propyl)-formed four hydrogen bonds with Ser-396, Asn-454, Lys-399, and Ser-452 residues of PBP2a transpeptidase. These two compounds are proposed as novel putative PBP2a transpeptidase inhibitors. Further characterization of compounds extracted from <i>Tribulus terrestris</i> may aid in identifying novel PBP2a inhibitory agents for managing MRSE infections.
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spelling doaj-art-0383536c84e84882975432957cd1d9552025-01-24T13:27:33ZengMDPI AGCurrent Issues in Molecular Biology1467-30371467-30452025-01-014715210.3390/cimb47010052<i>Tribulus terrestris</i> Fruit Extract: Bioactive Compounds, ADMET Analysis, and Molecular Docking with Penicillin-Binding Protein 2a Transpeptidase of Methicillin-Resistant <i>Staphylococcus epidermidis</i>Khalid J. Alzahrani0Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia<i>Tribulus terrestris</i> is a rich source of bioactive molecules and thrives in Mediterranean and desert climate regions worldwide. In this study, <i>Tribulus terrestris</i> methanolic HPLC fractions were evaluated for bioactive compounds and PBP2a transpeptidase inhibitors against methicillin-resistant <i>Staphylococcus epidermidis</i> (MRSE). Among the collected HPLC fractions, F02 of the methanol extract demonstrated potential activity against MRSE01 (15 ± 0.13 mm), MRSE02 (13 ± 0.21 mm), and MRSE03 (16 ± 0.14 mm) isolates. GC-MS analysis of the F02 fraction identified seventeen compounds. Among seventeen compounds, eight have favorable pharmacokinetics and medicinal chemistry; however, on the basis of in silico high water solubility, high GI absorption, blood–brain barrier non-permeability, lack of toxicity, and potential drug-likeness, 1-ethylsulfanylmethyl-2,8,9-trioxa-5-aza-1-sila-bicyclo[3.3.3]undecane and phthalimide, N-(1-hydroxy-2-propyl), were processed for molecular docking. 1-ethylsulfanylmethyl-2,8,9-trioxa-5-aza-1-sila-bicyclo[3.3.3]undecane formed three hydrogen bonds with Ser-452, Thr-584, and Asn-454 residues of the PBP2a transpeptidase. Similarly, phthalimide, N-(1-hydroxy-2-propyl)-formed four hydrogen bonds with Ser-396, Asn-454, Lys-399, and Ser-452 residues of PBP2a transpeptidase. These two compounds are proposed as novel putative PBP2a transpeptidase inhibitors. Further characterization of compounds extracted from <i>Tribulus terrestris</i> may aid in identifying novel PBP2a inhibitory agents for managing MRSE infections.https://www.mdpi.com/1467-3045/47/1/52<i>Tribulus terrestris</i>MRSEextractGC-MS analysisdruggable characteristicsADMET
spellingShingle Khalid J. Alzahrani
<i>Tribulus terrestris</i> Fruit Extract: Bioactive Compounds, ADMET Analysis, and Molecular Docking with Penicillin-Binding Protein 2a Transpeptidase of Methicillin-Resistant <i>Staphylococcus epidermidis</i>
Current Issues in Molecular Biology
<i>Tribulus terrestris</i>
MRSE
extract
GC-MS analysis
druggable characteristics
ADMET
title <i>Tribulus terrestris</i> Fruit Extract: Bioactive Compounds, ADMET Analysis, and Molecular Docking with Penicillin-Binding Protein 2a Transpeptidase of Methicillin-Resistant <i>Staphylococcus epidermidis</i>
title_full <i>Tribulus terrestris</i> Fruit Extract: Bioactive Compounds, ADMET Analysis, and Molecular Docking with Penicillin-Binding Protein 2a Transpeptidase of Methicillin-Resistant <i>Staphylococcus epidermidis</i>
title_fullStr <i>Tribulus terrestris</i> Fruit Extract: Bioactive Compounds, ADMET Analysis, and Molecular Docking with Penicillin-Binding Protein 2a Transpeptidase of Methicillin-Resistant <i>Staphylococcus epidermidis</i>
title_full_unstemmed <i>Tribulus terrestris</i> Fruit Extract: Bioactive Compounds, ADMET Analysis, and Molecular Docking with Penicillin-Binding Protein 2a Transpeptidase of Methicillin-Resistant <i>Staphylococcus epidermidis</i>
title_short <i>Tribulus terrestris</i> Fruit Extract: Bioactive Compounds, ADMET Analysis, and Molecular Docking with Penicillin-Binding Protein 2a Transpeptidase of Methicillin-Resistant <i>Staphylococcus epidermidis</i>
title_sort i tribulus terrestris i fruit extract bioactive compounds admet analysis and molecular docking with penicillin binding protein 2a transpeptidase of methicillin resistant i staphylococcus epidermidis i
topic <i>Tribulus terrestris</i>
MRSE
extract
GC-MS analysis
druggable characteristics
ADMET
url https://www.mdpi.com/1467-3045/47/1/52
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